Emily Dickinson Lexicon

GLAIR, n. [Fr. glaire. In Sax. glære is amber, or any thing transparent. This coincides with W. eglur, Eng. clear, L. clarus, and with Eng. glare, and L. gloria; perhaps with L. glarea, gravel, or pieces of quartz.]

1. The white of an egg. It is used as a varnish for preserving paintings. Encyc.
2. Any viscous transparent substance, resembling the white of an egg.
3. A kind of halberd. Dict.